one hiatus is a sequence composed of two consecutive vowels that generate two syllables. For example, chaos [ca–os]River [rí–o].
one diphthong is a sequence composed of two consecutive vowels that generate a syllable. For example, well [bue-no]new [nue-ve].
The difference more relevant between hiatus and diphthong is the number of syllables they generate; the hiatus generates two syllableswhile the diphthong generates one syllable.
In addition, it is necessary to take into account the combinations of vowels that give rise to these sequences. the open vowels they are a, e, or; the closed vowels they are i, u.
The sequence that forms the hiatus can have two open vowels, the same or different (zoo [zo-o]drop [ca-er]to praise [lo-ar]etc.) or an open vowel and another closed and accented vowel (fast [has-tí-o]root [ra-í-do]lute [la-úd]etc.).
The diphthong sequence can have two different closed vowels (roopsn, widow [viu–da]) or an open and a closed vowel and the latter is not accented (pont [pue-nte]trick [em-bau–car]beret [boi–na]).
|definition||Sequence of two consecutive vowels forming two syllables.||Sequence of two consecutive vowels that form a syllable.|
what is hiatus
It is a sequence that is formed when there are two consecutive vowels that form two syllables in the same word.
For a word to form a hiatus, it must meet one of these three vowel combinations:
- Two different open vowels.
- Two equal vowels.
- An open vowel and a closed and tonic vowel (with an accent).
- A closed and tonic vowel (with an accent) and an open vowel.
Examples of hiatus
According to the above rules, these would be some examples of hiatus:
- Po-e-ma: two different open vowels (o, e).
- To read: two equal vowels (e,e).
- root: an open vowel (a) and another closed and tonic (í).
- cold–or: a closed and stressed vowel and an open vowel (í, o)
- Co-à-gu-lo: two different open vowels (o, a).
- A-or-ta: two different open vowels (a,o).
- To own: two equal vowels (e,e).
- Abs-tra-í-t: an open vowel and another closed and tonic (a,í).
- Bio-lo-gí-a: a closed and tonic vowel and an open vowel (í,a).
What is diphthong?
It is a sequence that is formed when in the same word there are two consecutive vowels that form a syllable.
A word has a diphthong if any of these vowel combinations are true:
- Two different closed vowels.
- An open vowel and a closed vowel.
- A closed and unstressed vowel and an open vowel (it’s the same rule as above, but with the order of the vowels reversed).
Examples of diphthong
Here are some examples of words that form diphthongs according to the rules seen above:
- Rui-do: two closed vowels (u,i).
- Eu-ro-pa: one open and one closed vowel (e,u).
- In-te-lec-tual: a closed vowel and an open vowel (u,a).
- Triom-fo: two closed vowels (i,u).
- Pai-sa-je: open vowel and closed vowel (a,i)
- phobia: a closed vowel and an open vowel (i,a)